Home / 39,817.72-54,949.26-21,914.20

Finding the Fourth Proportional to 39,817.72, 54,949.26 and 21,914.20

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Solution

The fourth proportional to 39,817.72, 54,949.26 and 21,914.20 is: 30,242.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,817.72 : 54,949.26 = 21,914.20 : x
  2. Step 2: Convert to fraction form
    39,817.72/54,949.26 = 21,914.20/x
  3. Step 3: Cross multiply
    39,817.72x = 54,949.26 × 21,914.20
  4. Step 4: Simplify right side
    39,817.72x = 1,204,169,073.49
  5. Step 5: Solve for x
    x = 1,204,169,073.49/39,817.72
  6. Step 6: Final answer
    x = 30,242.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.